AI agents call xbrl_search_sec_concept to retrieve information from Arelle without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to retrieve or query concept information from SEC XBRL taxonomies without modifying data. 'Search' and 'browse' patterns are Read operations. The empty description reduces confidence, but the sibling tools (xbrl_browse_taxonomy, xbrl_concept_details, xbrl_company_facts) all indicate data retrieval patterns.
From the tool's definition Tool name 'xbrl_search_sec_concept' indicates a search/query operation over SEC concept data. The server context shows tools for 'taxonomy exploration' and 'SEC EDGAR integration,' suggesting this performs lookups in taxonomies or SEC concept databases.
Attacks that exploit this kind of access
xbrl_search_sec_concept. It is categorised as a Read tool in the Arelle MCP Server, which means it retrieves data without modifying state.
Register the Arelle MCP server in PolicyLayer and add a rule for xbrl_search_sec_concept: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Arelle. Nothing to install.
xbrl_search_sec_concept is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the xbrl_search_sec_concept rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for xbrl_search_sec_concept. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
xbrl_search_sec_concept is provided by the Arelle MCP server (thekinghippopotamus/arelle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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